Development of a Rail Brake Derived from Linear Motor Technology

Sakamoto, Yasuaki; Kashiwagi, Takayuki; Yoneyama, Takashi; Saga, Shin-ichi

doi:10.2219/rtriqr.55.105

Cited by 7 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main feature of the linear rail brake is that the power required for energization can be generated by the device itself. The desired performance has already been confirmed [1].…”

Section: Introductionmentioning

confidence: 75%

Development of Inverter-less Excitation Method for a Linear Rail Brake

Sakamoto

Ukita

2023

QR of RTRI

Self Cite

View full text Add to dashboard Cite

Studies have been carried out on rail brakes applying linear induction motor technology. This brake is capable of generating braking force without contact. In addition to the aspect of non-contact brakes, no onboard power supply for energizing this brake is required by using dynamic braking. This dynamic braking is performed with an excitation inverter, however there is a need to have a method which does not use an excitation inverter to reduce cost. Therefore, the authors devised an inverter-less excitation method using the self-excitation phenomenon of induction generators and tested it on a track-wheel testing machine. It was clarified that the method devised is useful as a low-cost excitation system.

show abstract

“…The main feature of the linear rail brake is that the power required for energization can be generated by the device itself. The desired performance has already been confirmed [1].…”

Section: Introductionmentioning

confidence: 75%

Development of Inverter-less Excitation Method for a Linear Rail Brake

Sakamoto

Ukita

2023

QR of RTRI

Self Cite

View full text Add to dashboard Cite

show abstract

“…So far, we have been studying the application of this brake to trains with a maximum speed of over 130 km/h. Results so far show that the proposed brake meets functional and performance related requirements [1] [2].…”

Section: Introductionmentioning

confidence: 87%

Condition Monitoring Method for a Linear-motor-type Rail Brake using an Excitation Inverter

2021

Self Cite

View full text Add to dashboard Cite

Studies have been carried out on a rail brake applying linear induction motor technology. This brake is capable of generating contactless braking force. In addition to the contactless braking, no on-board power supply for energizing this brake is required by using dynamic braking. In order to place this brake into service however a self-diagnosis method for checking the soundness of the device is necessary. Therefore, a condition monitoring method for this brake using an excitation inverter, not using dedicated sensors, was considered and examined on a test bench with a roller rig. Results from these tests clarified that the devised method is useful for self-diagnosis.

show abstract

“…To evaluate the braking performance of the LIM-ECB system and verify the stability of the generating power control by changing the excitation frequency as shown above, roller-rig bench tests were conducted [1,3] using an arcshape armature as shown in Fig. 5.…”

Section: Achievements From Past Developmentsmentioning

confidence: 99%

“…The disadvantage of this braking system however, is that tracks can heat up because of the Joule-heating effect of the eddy current that is equal to the deceleration energy of the vehicle. To offset this disadvantage, a LIM-type eddy-current rail brake system (LIM-ECB) was developed that has an armature excited by three phase AC instead of a DC electromagnet [1][2][3][4]. This system operates as a liner induction motor (LIM) and generates the excitation power itself by using braking energy.…”

Section: Introductionmentioning

confidence: 99%

Study on Miniaturization and Weight Reduction for the Application of LIM-type Eddy-current Rail Brakes to High-speed Trains

et al. 2017

Self Cite

View full text Add to dashboard Cite

Takashi SASAKAWA Maglev Systems Technology DivisionTo apply LIM-type eddy-current rail brakes to high-speed trains, it is necessary to miniaturize and reduce the weight of their armature mounted on bogies. This paper therefore considers reducing the volume of the iron core, taking into account the need to maintain braking performance at high speed, which has a great effect on braking distance. Electromagnetic field analysis was then used to verify the braking performance of the miniaturized armature by comparing it with armatures developed to perform well at low speed.

show abstract

Development of a Rail Brake Derived from Linear Motor Technology

Abstract: Shin-ichi SAGA

Cited by 7 publications

References 3 publications

<b>Development of Inverter-less Excitation Method for a Linear Rail Brake</b>

<b>Development of Inverter-less Excitation Method for a Linear Rail Brake</b>

<b>Condition Monitoring Method for a Linear-motor-type Rail Brake using an Excitation Inverter</b>

<b>Study on Miniaturization and Weight Reduction for the Application of LIM-type Eddy-current Rail Brakes to High-speed Trains</b>

Contact Info

Product

Resources

About